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MSS1812T Series

High Temperature Power Inductors

Coilcraft MSS1812T Series shielded surface-mount power inductors feature low DC resistance and excellent current handling in a wide range of inductance values, making them a cost-effective option for a variety of general-purpose applications.

7 inductance values from 100 µH to 1000 µH
Low-loss ferrite drum core for flat inductance vs current
Low DC resistance for greater efficiency
Excellent current handling
Magnetic shielding allows high-density mounting
AEC-Q200 Grade 1 (−40°C to +125°C)

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Count	Unit price
1	$6.30
175	$5.50
350	$4.13
700	$2.49
1400	$1.92
2800	$1.66
5250	$1.52

For high volume or non-stock items, request a quote.

Tolerance

K = 10%

Termination

E = Matte tin over nickel over phos bronze

Packaging

D = 13" machine-ready reel

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Designer's Kit:

Kit	Values	Price
C499	7 (3 of each)	$45.00

Specifications

Electrical specifications at 25°C. Operating voltage 400 V max

Part number 1	Inductance (µH) 2	Tolerance (%)	DCR (Ω) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (µH) 2	Tolerance (%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
MSS1812T-104MED	100	20	0.045	0.052	3.3	5.2	5.8	6.0	2.87	4.35
MSS1812T-154KED	150	10	0.057	0.066	2.8	4.2	4.6	4.8	2.50	3.80
MSS1812T-224KED	220	10	0.086	0.098	2.3	3.6	3.8	4.0	2.09	3.16
MSS1812T-334KED	330	10	0.130	0.150	1.8	2.9	3.1	3.1	1.68	2.55
MSS1812T-474KED	470	10	0.200	0.230	1.35	2.4	2.7	2.8	1.39	2.10
MSS1812T-684KED	680	10	0.240	0.270	1.33	2.0	2.2	2.3	1.24	1.88
MSS1812T-105KED	1000	10	0.450	0.520	0.85	1.7	1.8	1.8	0.93	1.40

Notes

When ordering, please specify termination and packaging codes: e.g. MSS1812T-105KED
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent.
DCR measured at 25°C on a micro-ohmmeter and a Coilcraft CCF858 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD -D test fixture.
Isat: DC current at 25°C that causes the specified inductance drop from its value without current. Temperature derating curves.
Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

E = RoHS compliant matte tin over nickel over phos bronze.
Q = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
P = Non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (175 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +125°C with (40°C rise) Irms current.

Storage temperature range:

Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+165°C (ambient + temp rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation ‡
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
175	330	100	13	50,4	44,4	44	28	4	2	12,4	0,5

‡ Part marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

11.82 - 13.26 g

Packaging:

175/13″ reel; Plastic tape: 44 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.4 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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MSS1812T Series

High Temperature Power Inductors

Selected configuration not available

Specifications

Termination:

Packaging:

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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